#!/usr/bin/env ruby

# -------------------------------------------------------------------------- #
# Copyright 2002-2023, OpenNebula Project, OpenNebula Systems                #
#                                                                            #
# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
# not use this file except in compliance with the License. You may obtain    #
# a copy of the License at                                                   #
#                                                                            #
# http://www.apache.org/licenses/LICENSE-2.0                                 #
#                                                                            #
# Unless required by applicable law or agreed to in writing, software        #
# distributed under the License is distributed on an "AS IS" BASIS,          #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
# See the License for the specific language governing permissions and        #
# limitations under the License.                                             #
#--------------------------------------------------------------------------- #
ONE_LOCATION = ENV['ONE_LOCATION']

if !ONE_LOCATION
    RUBY_LIB_LOCATION = '/usr/lib/one/ruby'
    GEMS_LOCATION     = '/usr/share/one/gems'
    VMDIR             = '/var/lib/one'
    CONFIG_FILE       = '/var/lib/one/config'
else
    RUBY_LIB_LOCATION = ONE_LOCATION + '/lib/ruby'
    GEMS_LOCATION     = ONE_LOCATION + '/share/gems'
    VMDIR             = ONE_LOCATION + '/var'
    CONFIG_FILE       = ONE_LOCATION + '/var/config'
end

# %%RUBYGEMS_SETUP_BEGIN%%
if File.directory?(GEMS_LOCATION)
    real_gems_path = File.realpath(GEMS_LOCATION)
    if !defined?(Gem) || Gem.path != [real_gems_path]
        $LOAD_PATH.reject! {|l| l =~ /vendor_ruby/ }

        # Suppress warnings from Rubygems
        # https://github.com/OpenNebula/one/issues/5379
        begin
            verb = $VERBOSE
            $VERBOSE = nil
            require 'rubygems'
            Gem.use_paths(real_gems_path)
        ensure
            $VERBOSE = verb
        end
    end
end
# %%RUBYGEMS_SETUP_END%%

$LOAD_PATH << RUBY_LIB_LOCATION

require 'rexml/document'

require_relative '../lib/tm_action'
require_relative '../lib/datastore'

#-------------------------------------------------------------------------------
# BACKUP tm_mad host:remote_dir DISK_ID:...:DISK_ID deploy_id bjid vmid dsid
#-------------------------------------------------------------------------------
TransferManager::Datastore.load_env

_vm_xml = STDIN.read

dir       = ARGV[0].split ':'
_disks    = ARGV[1].split ':'
_deployid = ARGV[2]
_bjid     = ARGV[3]
vmid      = ARGV[4]
_dsid     = ARGV[5]

rhost     = dir[0]
rdir      = dir[1]

base_path = ENV['BACKUP_BASE_PATH']

bck_dir = if base_path
              "#{base_path}/#{vmid}/backup"
          else
              "#{rdir}/backup"
          end

rm_script = "rm -rf #{bck_dir}"
rm_script << "; rm -rf #{base_path}/#{vmid}\n" if base_path

rc = TransferManager::Action.ssh('postbackup',
                                 :host => rhost,
                                 :cmds => rm_script,
                                 :nostdout => false,
                                 :nostderr => false)

if rc.code != 0
    STDERR.puts "Error cleaning backup temporal files: #{rc.stdout} #{rc.stderr}"
end

# Error is logged, tmp files will be removed in next backup, or VM termination
exit(0)
